Daylight-loading photographic-film pack.



E. THORNTON.

N TOGBAPHIO FILM PACK.

I D KAY 13,1907.

Patented Aug. 17, 1909.

8 SHEETS-SHEET 1.

DAYLIGHT LOAD APPLIO 93 1 ,525.

INVENTOR. @lwzm 5 WITNESSES. S a l M W J. E. THORNTON. DAYLIGHT LOADING PHOTOGBAPHIO FILM PACK. APPLIOATIOH FILED KAY 13, 1901.

931,525. Patented Aug. 17,1909.

' B HHEBTB-BHEET 3.

FIG. 3. F/G. 4.

'lTN ESSES. 3 WW INVENTOR. 7 d M 8 SHEETS-SHEET 3v Patented Aug. 17. 1909.

INVENTOR. fifm J. E. THORNTON.

APPLICATION FILED MAY 13. 1907.

DAYLIGHT LOADING PHOTOGBAPHIO FILM PAOK.

J. E. THORNTON. DAYLIGHT LOADING PHOTOGBAPHIG FILM PACK.

APPLICATION FILED IAY13.1907.

Patented Aug. 17. 1909.

INVENTOR. @4 down, (1%? WITN ESSES.

"In I:

J. B. THORNTON. DAYLIGHT LOADING rnowoenumo mm nox. APPLXULTIOK I'ILED KAY 13,1907. 931,525. Patented Aug. 17. 1909. B SHEETS-SHEET 5.

F/G l8.

- INVENTOR wr J. E. THORNTON. DAYLIGHT LOADING PHOTOGBAPHIG FILM PACK.

APPLICATION FILED MAY13,190'I.

Patented Aug. 17. 1909.

H62]. H .20. H6122. H6123.

WH'NESSES fw WW" J. B. THORNTON. DAYLIGHT LOADING PHOTOGRAPHIO PI LM PAGK.

APPLICATION nun MAY 13, 1901.

Patented Aug. 17. 1909.

8 SHEETS-SHEET 'T.

INVENTOR.

- WITN E5555.

J. B. THORNTON. DAYLIGHT LOADING PHOTOGBAPHIU mm 1101:.

APPLICATION FILED MAY 13, 1907. Patented Aug. 17. 1909.

8 SHEETS-SHEET 8.

H635. mtaaf 4 76.37.

WITNESSES.

Jmd filafix.

JOHN E. THORNTON, OF ALT'R-I'NCHAM, ENGLAND.

DAYLIGHT-LOADING PHOTOGRAPHIC-FILM PA CK.

Specification of Letters Patent.

Patented Aug. 17, 1909.

Application filed May 13, 1907. Serial No. 373,438.

.T 0 all whom it may concern:

lie it known that 1,.lonx Enwaao TuoaN 'rox; British subject, and resident of Altrincham, county of Chester, Eiwland, have invented certain new and nsefuT Improvements in Daylight-Loading Photo raphic- Film Packs, of which the following is a specification.

This invention relates to the device known as the film Jack, that is, a sealed )ackage of sensitive. photographic films inclosed in a siecial form of case, which is scaled up by t 1e maker before sale, and serves the multi )lc purpose of a packing case in which the til ms are packed and kept stored; as an exposing case, which is placed in the camera, and in which the films may be exposed in SUCCL'SSlOH by transferring each one after exposure from the front to the back of the case, without. light affecting any but the front film in the exposure position; and finally as a storage case in which the films may remain until required for development; the whole operations, including placing in the camera, transferring between exposures, and removal from the camera afterward, being conducted without recourse 'to a dark room. Films made up in this manner are termed daylightloading flat films, and the complete sealed iackage a film pack; the user breaks a holding seal before. he can use the aekage, and throws away the case when the ilms are developed; the case is therefore necessarily inexlpensive in material, construction and tota cost.

This invention comprises detail improvements over my former patent (366039 of Jannary 15, 1901, and their object is to attain the following advantagc':-to facilitate and cheapcn the manufacture and operations connected therewith, to produce a case that can be readily filled by the manufacturers, in the dim light of the dark-room, with very little handling or fingering of the delicate sensitive films by the operative packers; to roduoe a case which is composed of movab e or separable sections where )y the same can be easily opened by the user as often as desired for removal of one or more films for development; and yet be as easily rescaled by him for use of the remaining unexposed films, or further storage of exposed films in the package; and to reduce a well-finished workmanlike artic e which shall be reliable and shall not easily go wrong durin use. These several advantages are attained combined with an exceedingly low cost of manufacture.

The component parts of the im )roved film pack are :-1. The films, with their backings, pull tabs and shoulders. 2. A rimmed inner sheath or film holder constructed with flanged rims and ends for holding the films and guiding them in their passage from front to rear, and with stops for the tabs to prevent the films being passed through. 3. A yielding spring division or pressure pad to keep the fi ms pressed up against the rims of the sheath in the proper exposure position at front of the case or film pack. 4. An outer case or light-excluding wrapper. A light.- tight valve through which the pull tabs pass from inside to outside the wrapper sulliciently narrow to prevent the films passing through. (3. Steps to engage the film shoulders and prevent the films being entirely withdrawn from the case. 7. A light-exeluding cover or flexible shutter to protect. the face of the front film of the com )ltlt. pack. 8. A sealing lug to exclude ight and air from the use pack.

The invention will be fully described with reference to the accompanying drawings forming part of the specification.

F igure 1. is a perspective view of the fin ished film ack ready for sale and use showing the sa ety cover and tap and superimposed bundle of all tabs. Fig. 2. front elevation of single fi m and tab. Figfl'tsectional elevationof same. Fig. 4. perspective view of a bundle. of films with tabs ready for insertion in the sheath or case the safety cover being on top and the closiiw plug at the. end attached to the last leaf. l ig. I). perspective view of sheath for holding the unexposed films and their tabs constructed with a sing-hdividing plate to form the two com Hll'lments, showing the stops for the. tab shoulder. Fi (3. perspective view of front of similar s math for unexposed films and their tabs showing double dividing plates to form the compartments. Fig. 7. perspective view of back of similar sheath showing a slot for the tabs to Miss through and stops for llashonlders. Fig. 8. transverse section. Figs. 9 and 10. section and perspective view Til loose pad 1) formed of a piece of metal or cardboard with springs (I attached thereto. Figs. 11 and 12. section and perspective view of loose pad D formed of a piece of cardboard with indented ribs d and with its ends turncd over at (5 so as to have sullicieal g pring in itself. Figs. 13 and 14. section find perspectiye view of loose pad D formed ;3)f a piece 0t cardboard which is doubled into two lengths the partdf being rved or corrugated to give the pad suf- Qcieut spring in itself. Fig. 17 perspective iiew from interior of front. part. of case E. ig. 1(3. perspective view from interior of ack )art of case E. Fig. 1?. section of (use an sheath C in position. Figs. 15 and 1S). ctions showing modifications of the ease E fi' ade in one piece the front and back parts 1 ing hinged together. Figs. 20, ll and 2'2. ctions of the complete film pack with the v uter case E detached representing the style case. E sheath C and valve F preferred actual manufacture. Fi s. 23, 9e and ctions with outer case E detached showing e valve F made of two pieces of plush {l one attached to the front part and the t er f attached to the back part of the case Iig. 26. section showing the parts in osition and the slotted light trap plate G scrted between the sheath and the valve. ig 27, 28 and 29. similar sections with the eath C made full length of the case E and e valve F of two )ieces of plush f laced in the sheath. Fig. 30. section show- I, g the parts in position. Fig. 31. section howin r the valve F arranged with one new f attached to the sheath and the ther piece 1 attached to the back of case E. igs. 32 and 33. sections showing the valve formed independent of' either the sheath or case E and placed inside of the case or the sheath to rest upon. Fig. 34. perective details of a further modification. I lg. 35. section of outer case closed by the ring pad D. Fig. 36. section of film pack owing osition of the closing plug It beore the lms are exposed. Fig. 37. section f film pack showing position of the closing lug K after the films are all exposed. Fig. *38. section of film pack showing the position [of the closing plug K when drawn up to ,ifchoke the film passage, the exposed films beaing omitted in this and the preceding ligure illustrate more clearly tie operation of -1 he sealing phi t. The flat cut films A are. attached at or 1 ear their to edges to opaque sheets or backing papers which are more than twice the len th of the film. The extensions 13 of the bee ting apers serve as pull tabs for transferring tie films from one part of the case to the other, and are suitab shaped, munbered, or otherwise marked to indicate their sequence in the pack, and the like; and j have spaces in w nch to wr te part culars Egof exposure; or may be rintei with an '.-advertisement. These bac tings B are the "full width of the films, except in the part which serves as the pull tab, where they are cut somewhat narrower to form projecting shoulders I) which act as a stop to prevent the film being withdrawn entirely from the ease. The films may be attached by narrow adhesive tapes (1. of thin paper, fabric, or the like. so that they hang loosely from their backings. It is important that these Z-ply and I i-ply portions shall be. as flexible as iossible to insure ease oi bending over during transt'erem-e. 'lhe tab 1% may be. perforated at. l/' for tearing oil it desired, or may be torn against the sharp edge of the outer ease instead in order that it. may be thrown away after serving its mi-pose of transferring the lilm. (See more particularly Figs. 1 to The inner sheath or holder C for the nu exposed films A aml their pull tabs li, may be made of anv suitable li ht material, such as paper, cardboard, or sheet metal, which can be readily bent to the desired shape and will retain its form. I at. present pro iose to make the sheath C of cardboard, iuo ded between suitable dies. The sheath is constructed so as to form two compartments, with guideways 0 along the edges which will guide each lihn ash. is moved from one. a side to the other. A dividing plate or partition 0' forms the two chambers or communicating compartments in which. the lilms lie, the top of the partition being rounded to provide a suitably curved passage for the lihn, see Fig. 5; or it is made of a continuous groove-shaped piece which is formed with rimmed flanges thus making two compartments, see Figs. (3, T, and S, the result being the same in either case. The side edges of this sheath are turned up at right angles to form the guides c and again at right an les to form run flanges against which the en ges of the film face may rest. In the forms shown in Figs. 5 to S the sheath may be made of two or more pieces, blocked or stain )ed to the desired shape and secured togetlier. At. the front. of the sheath the guide piece 0 is turned up to form the bottom rim, at the back the guide piece may be cut away for the pull tabs li to pass. leaving two stop pieces 0 for the shoulders I; of the tabs to enga e (see Fig. 5), or it may be formed with a shot (see Fig. 7), for the pull tabs ll to pass through with the stops 0 at either end.

A bundle of films A with their pull tabs 13' arranged as in Fig. 4. are by the manufacturer placed in the sheath C, the. lilm lving in the front compartment. and the. lee

pull tubs ll in the back eompart-mentl. the guide pieces or rims retammg them in )ositiou. A loose spring pad I) is inserted in the front. compartment, between the bundle of films and the dividing partition v to 12.1

continually press the lilms forward against. the guide pieces or rims 1-. The pad l) may be a flat piece of cim'lboard. sheet. meta, wood, or other material, stitl'ened by the ribs (Z' apd provided with light springs (.l atlat taehed to one side (see Figs. 11 and 19.). Or whenmade of cardboard the ends (1 may be bent over to one side to give a yielding spring to the ad so as to have suflieient spring in itsel to force the films in succession to the front, see Figs. 11 and 19. Or it may be made of a piece of cardboard bent or doubled over the back portion (1 being providedavith a series of bends or corrugations to give it sufficient spring in itself to press the films forward, see Figs. 13 and 14. Or any other suitable equivalent may be used to keep the films up to the. correct focal plane.

The outer case or light excluding wrapper I) is likewise. made of paper, cardboard, sheet metal, or other light material that can be readily bent and will retain its shape. It. may be. formed in several shapes and constructions, but I have. found the two following convenient, either of which are used ac- (.(H'tlltW to size and requirements of pack to be mm c. In the first shape the case is made in two separate parts, as two shallow boxes that fit one within the other inclosing the sheath and films between as in a box with lid see Fi s. 15, 16, 17 and 20 to .25. In the other modification the two parts are hinged orjoined together as one piece that may be folded up and closed together book fashion, the turned up flanges or sides of one half fitting over and inclosing the similar sides of the other half (see Figs. 18 and 19). The two halves of either form of case. are held together in any suitable-way; for instance, if of metal they will fit so tightly within each other when forced'togcther that they can only be parted by the insertion of a lever, such as a knife edge, coin, or the like; if of paper, or cardboard they-may be socured by a label or adhesive strips; but I prefer to make onesection of the case with sheet metal clips 0 or turned over flanges, or the like, either of which can be easily bent or re-hent (Fig. 15). These halves or sections of the case may, however, be retained in cooperative relation by any other suitable means.

The. valve F in the case I throiwh which the pull tabs B pass from the inside. to outside of the pack, is so constructed as to exclude any possibility of light entering, and yet allow ample freedom of action of the tabs (which are superimposed in a pile) without adding undue pressure such as would cause the pulling of one tab to drag another tab and film with it by frictional contact. The valve F may be. formed in several ways but the two following examples have both been found etl'ective, inexpensive, and reliable in practice. The first form consists of two pieces of long pile plush,

cloth orthe like f f so )laced that they inclose the" bundle o f ta )8 between. These are-secured in position by tldllOSl/YQ cement,

or by metal strips which are bent over to inclosc and grip their edges. Each piece forms one half of the valve and the two may be attached to the corresponding halves .of the outer case E (see I igs. 23 to 2(3) or one piece to the case and the other to the inner sheath; (see Fig. 31) so that when the package is properly closed up the valve shall be complete; or both sections may be inserted in the sheath itself, thus making the sheath and valve complete before the case is put. on, (Figs. 27 to 30.) A slotted plate G may be. placed on one or both sides of the valve as a further light-trap. In the other modification I form the valve complete as a whole, by bending the plush, or the plush and its metal backing, around the bundle of films as an endless band or ring, and tluough the slot thus formed the film tabs pass. The valve is then placed in position between the halves of the case, or through a slot in the shallow side thereof, and is held in position. and prevented from )assing too far through. by a rim or flange formed on the valve. by turning up its edges (Figs. 32 and 33). In another modification (see Fig. 34) the. valve may be made in two loose parts f-' f of felt lush or other material of a yielding nature.

n making up the pack and packing in the films the part f is placed in position in the back compartment of the sheath at f, then the tabs are. laid in, and the part f" placed in position, thereby forming a slotted block of yielding pile which is held in place against the )artition c of the sheath C by the outer guide rim or flanges. The film tabs B are provided with shoulders I) as hereinbefore described, and the valve slot is therefore made only wide. enough to pass the narrow portion of the tabs through.

The front side of the inclosing case or wrapper I!) has an aperture cut therein. a little less than the film to be exposed behind it, and this aperture is closed by the maker. when scaling up the package, by means of a leaf II of opaque paper, of single, double. or treble thickness. provided with a pull tab l-l' like those attached to the films. The outer end of this tab is marked Safety cover" (or some such wording) to indicate its purpose to the user (see Figs. 1 and 4). This cover may be secured against. accidental wit hdrawal if necessary by an adhesive label ll attached to cover and case. (see Fig. 1).

To close the film passage aml prevent entrance of light when the films have been all exposed, a plug K may be employed (see Figs. 36 to 38) attached to a cover )uper l with a pull tab k. The plug K is drawn up by its own tab K until it is squeezed into and completely fills or chokes up the. film passage, thus perfectly exeludmg all light. Ihe lug K and its tub K may be of any suitable yielding material, such as paper. cloth, plush, or the like.

The complete film pack may be placed directlyinto a camera of suitable size and shape, havin a narrow rim or fian e -;(against whicli its face may rest) surrounding the exposure openin It may be held securely in position by turn buttons,

springs retaining flanges, or the like; or it ,may simply be slipped into a groove, as usual wit where. the film pack is too small, the dill'erfence in size is made up by means of an adapter or frame, similarly provided with ;retaining means. For cameras where it is idesired to remove the film pack between each iexposure, for focusing purposes, or for any gother reason, such as convenience in transit, ';t.he front of the adapter is closed by a flshntter of any ordinary well-known type as used in dark slides.

To use the film melt the operator places it in position in the camera, in open daylight either directly or by means of one of the aforesaid forms of adapter, first removing or breaking the label that secures the safety cover, and then draws out the first tab (attached to the said cover) to its fullest extent, tearing off and throwing away the now useless tab. The front film is by this action uncovered in the camera and subsequently duly exposed. Upon pulling the next tab (attached to this exposed film) in a similar manner, the first ex osed film is re moved from before the pile 1n the front portion of the sheath, alon the guideways to the back portion of the s ieath, the next film taking its place in front. The erations are repeated until all are exposed,w ien the films, having all been transferred to the back of the sheath, are thereby rotected from li ht, and the film pack may t ion be removed fi'om the camera in dayli ht. The spring pad further serves to close t ie package against entry of light (see Fig. ),and I do not find, in prac- Lice, that any further protection 15 necessary; in fact the li ht does not find entry around the curved ilm passage even if the pressure plate should not close the opening quite perfectly, especially as the whole interior of the case is blackened to avoid reflection of any light that may strike the parts. But when further protection is required, as ma sometimes be desirable, say in the case of arge sizes of film lpacks, another safety .covcr-may be appliet after the-last film, similar to theone already described at the front.

By thisinvention .(in which the mounting of the films, backings, and tabs is absolutely "iidepeudent ofthe inclosing case, pressure pad, or receiving chamber) owing to the use of m .inner sheath or carrier, the correct and ree working of the films durin r transferencecan be thoroughly tested by the man- ..ufacturer. before being mcased, and if the valve is placed entirely in the sheath itself,

1 most plate holders. For cameras' the whole combination is absolutely independent of the case, so far as working goes.

This feature distinguishes this invention from those heretofore known in which free movement of the films can only be tested when they are inclosed in the case and the case secured, which necessitates the whole mm inch being unsealed, opened and again resea ed, in order to rectify any irregularity.

What I claim as my invention and desire to protect by Letters Patent is:-

1. In a film pack, comprising a sealed package of daylight loading flat films for use. in a camera, of the type referred to a rimmed inner sheath or carrier with a recess at the front side to receive a bundle of films having extension tabs and backings; a rounded nose at the top over or around which the extension tabs or backings may be placed before use, and the films be drawn after exposure; a recess at the back side in which the extension tabs may lie before use, and the films be drawn after exposure; rims or flanges to retain the films in the sheath and forming, in combination with the sides, guide-ways to define the path of the film during the transfer movement; and with stop plates to engage with shoulders on the extension tabs and backings to prevent withdrawal of the'lihns from the sheath and with the elements of a light-valve to grip the extension tabs substantially as described.

2. In a film pack, comprising a sealed package of daylight-loading fiat films for use in a camera, of the type referred to, the combination with a sheath such as described of a sprint pressure pad inserted between the back of the bundle of films and the front recess of the sheath in which they lie, for the purpose of keeping the front film in the correct focal plane against the front flan es of the sheath, and to compensate for the 1minishing thickness of the bundle of films as they are successively exposed and withdrawn, and in addition to close the open front of the case after all the films have been transferred, substantially as described.

3. In a film pack comprising a sealed package of daylight-loading fiat films for use in a camera, of the type referred to, the combination of a sheath such as described and an outer case or light-excluding wrapper, substantially as described.

4. In a film pack comprising a sealed package of daylight-loading fiat films for use in a camera, of the type referred to, the eombimition, with a sheath and a light-exeluding case or wrapper such as described, of a sprin pressure pad placed within the sheath and the case.

5. In a film pack comprising a sealed package of daylight-loading fiat films for use in a camera, of the ty )0 referred to, the combination, with a sheath, a pressure ad, and a case such as described, of a light'tight tab va1ve,.in conjunctive operation with the case, substantially as described.

(3. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera, 0 the type referred to, the combination, with a sheath such as described and a case or wrapper having an exposure opening in the front side thereof, of a safety cover or flexible shutter to close and seal the said opening, substantially as described.

7. In a film pack comprising a sealed package of dayli ht-loading fiat films for use in a camera, of the type referred to, the combination with a sheath such as described, a perforated case or wrapper, and a safety cover to close such opening, of a sprin pressure )ad placed within the case and sheath, substantially as described.

8. In a film pack comprising a sealed package of daylight-loading fiat films for use in a camera, of the type referred to, the combination of a sheath such as described having front and rear recesses and a bundle of films (havin extension tabs and backin placed in t 10 front recess of the sheath, su )stantially as described.

9. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera, of the ty )0 referred to, the combination, with a shout i and a bundle of films as described, of a spring pressure pad to press the films a ainst the rim flanges of the sheath, substantially as described.

10. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera, of the type referred to, the combination with a shout i, a bundle of films, and pressure pad such as described, of an outer case or ight-excluding wrapper, substantially as described.

11. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera, of the ty )e referred to, the combination with a sheatl i, bundle of films, pressure pad, and outer case or wrapper liavmg an exposure opening in the front thereof, of a safety-cover or flexible shutter to close and seal the said opening substantially as described.

12. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera, of the type referred to, the combination with a sheath, pressure pad, outer case, and bundle of films of a lighttight tab valve through which the extension tabs may pass to the outside of the case, in order that the films may be drawn from the front to the back of the sheath and case, substantially as described.

13. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera, of the type referred to, the combination of a sheath such as described and a valve, substantially as described.

' 4. In a. film ack comprising a sealed package of daylight loading flat films for use in a ca1nera,.of the-type referred to, the combination of a sheath such as described and a valve placed in the case, substantially as described.

15. In a film pack. comprising a sealed package of daylight loading fiat films'for use in a camera, of the type referred to, the combination of a sheath such as described and a valve formed within the ease, substantially as described.

16. In a film pack comprising a. scaled package of daylight loading flat. films for use in a. camera, of the type referred to, the combination of a sheath such as described. an outer case or light-excluding wrapper, and a valve substantially as described.

17. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera,.of the type referred to, the combination of a sheath such as described, an outer case or light-excluding wrapper, and a valve placed in the case, substantially as described. 1

18. In a film pack comprising a sealed package of daylight-loading flat films for use in a camera, of the type referred to, the combination of a sheath such as described, an outer case or light-excluding wrapper, and a valve formed within the case, substantially as described.

19. In a film pack comprising a sealed package of daylight loading flat films for use in a camera, of the type referred to, and having an inner sheath and outer case, a light-tight tab valve, substantially as described.

20. In -a film pack comprising a sealed package of dayli lit-loading fiat films for use in a camera, 0 the t pe referred to,-ha\- ing an. inner sheath and outer case, a lighttight tab valve formed within the ease, substantially as described.

21. In a film pack comprising a sealed package of daylight loading flat films for use in a camera, of the type referred to, and having an inner sheath and outer case, a light-tight tab valve formed between the two opposite sections of the case, substantially as described.

22. In a film pack comprising a sealed package of daylight-loading fiat films for use in a camera, of the type referred to, and having an inner sheath and outer case, a light-tight tab valve formed within the case. and operating in con'unction with the sheath, substantially as escribcd.

23. In a film pack comprising a. sealed package of daylight loading flat films fol use in a camera, of the type referred to, am having an inner sheath, an outer case, and :1 bundle of films within the casehavin ex-l tension tabs which pass through a lighb tight tab valve to the outside of the case. stops formed on the sheath, engaging with shoulders on the tabs, the backin s, or films, to prevent the films being with rawn from the case through the tab passage, substantially as described.

24. In a film ack comprising a sealed package of day-lwht-loading fiat films for use in a camera, 0? the type referred to, and having an inner sheath, an outer case, and a bundle of films within the case having extension tabs which pass through a lighttighttab valve to the outside of the case, stops formedby a slotted part, the said slot being only long enough to pass the-narrow tabs, and therefore engaging with the shoulders on the tabs, to prevent the films being withdrawn from the case, substantially as described.

.25. A film pack comprising a sealed package of dayli" it-loading flat films for use in front of the case; a removable safety cover or shutter to protect the front film of the pack lying behind such opening; and with a sealing plu to choke the film passage after all the lms iave been drawn mto the rear recess of the sheath; and with a severable holding label to secure the safety cover against accidental displacemcnt,substantially as described.

26. A film pack or sealed package of daylight-loading flat films for use in a camera,

of the type referred to, having the opposite sections of the case or light-excluding wrapper secured together by bendable metal por tions, can be bent or forced open, and again re-bent to close, in order that the package may be readil Y unsealed or re-scaled by the user, substantially as described.

27. In a film pack comprising a sealed package of daylight-loading fiat films for use in a camera, of the type referred to, the cmnbination, with a sheath and case such as described, of a sealing plug which can be drawn into the fixed film passage existing between the sheath and case, to choke or seal the said passage against entry of light, substantially as described.

28. In a film pack, cou'iprising a sealed package of daylight-loading llatfilms for use in a camera. of the. type referredtoa rimmed inner sheath or carrier charzmterized by flanged rims and ends in one piece to hold the films and guide them in )assing from front to rear and forming a chamber at the front to receive a bundle of tabbed films and a chamber at the back in which the tabs lie before use with stop plates to engage shoulders on the extension tabs to prevent witlulrawal of the films from the sheath; and with the elements of a lightralve to grip the. extension tabs and a rounded nose at the top around which the extension tabs are placed before use, and the films drawn after exposure; constructed substantially as described.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

W i t nesscs l. Owm-m OBmnx, llaaur Baimra'rnlcn. 

